package homework;
/*
A
BC
DEF
HIJK
LMNOP
 */
public class Homework6 {
	public static void main(String[] args) {
		int unicode = 65;
		for(int i = 1; i <= 5; i++){
			for(int j = 1; j <= i; j++){
				System.out.print((char)unicode);
				unicode++;
			}
			System.out.println();
		}
	}
}